Steam-boiler



(No Model.) 3 Sheets-Sheet 1.

A. WORTHINGTON.

STEAM BOILER A7 7 7/ r H N. )QV s@ Q o FIA@ uw Modvex.) s sheets-sheet 2.

A. WORTI-IINGTON.

STEAM BOILBR.

No. 429,164. PatentedJune 3, 1890.

(No Model.) 3 Sheets-Sheet 3.

A. W HINGTON.

ST BOILER.

No. 429,164. Pateted June s, 1890.

ff *Q-IQ- 'UNITED STATES PATENT OEEICE.

AMASA VVORTHINGTON, OF BROOKLYN, NEW YORK.

STEAM-BOILER.

SPECIFICATION forming part of Letters Patent No. 429,164, dated June 3, 1890.

Application tiled March 8, 1889. Serial No. 802,581. (No model.)

To all whom t may concern:

Be it known that I, AMASAVORTHINGTON, a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented certain new and useful- Improvements in Steam-Boilers, of which the following is a specification.

My improvements relate to that class in which inclined tubes extend through the furnace, said tubes having Vertical end connections or headers, and a horizontal separatingchamber placed above and united to them in such away that the water mingled with steam may freely rise through the tubes and front connections and the water descend in like manner at the back; and the objects of my improvements are, first, to provide a boiler in which the tubes are connected in single vertical rows and having straight and independent outlets to the separating and mud drums; second, to make the headers of cylindrical form and have them so arranged that they will allow the tubes to lie in a staggered position; third, to facilitate handling and transportation by making the units or sections as small as is consistent with complete vertical rows of tubes; fourth, to promote free circulation, and, fifth, a boiler having large water capacity.

To these ends my invention consists of a header constructed of an integral tubular piece having expanded portions to receive series of tubes in a common vertical line, and contracted portions which iit alternate expanded portions of similar adjacent headers; and my invention also provides for a sectional name-plate of a marginal character corresponding to that of the headers.

Referring to the accompanying drawings, Figure 1 is aside and Fig. 2 an end elevation, the brick-work being removed. Fig. 3 is a vertical longitudinal section through one of the heads and mud-drum. Fig. 4 is an end elevation of a number of the heads, showing two of them partly in section. Figs. 5 and t5 are views of the name-plates, showing how they are applied and clamped to the tubes. Fig. 7 shows a modification in the shape of the heads. Fig. 8 shows two and Fig. 9 three heads cast together, and the bottom end of each shows how one larger pipe maybe used for a connection instead of smaller pipes for each one, as shown at the opposite or top end Fig. 10 is a section on line X X,

attaching the safety-valve, m an-hole 'm in one end, and two flanged cross-pipes s, having openings in which to expand the tubes.

The headers H unite the inclined tubes T in vertical rows or sections, each header receiving one tube from each alternate horizontal row of tubes. Thus the height is made up of double sections, each single section as placed in the boiler standing above or below 'the adjoining section one-half the distance between its tubes. I contract the sides of the heads 2 2, Fig. 4, so as to bring the tubes into a staggered position relative t0 one another. I make these headers, preferably, of cast-steel, malleable or wrought iron, and with caps n opposite the tubes. The iiamewalls f are made of cast-iron plates, in halves, so as to tit around the tubes,'and with fastenings at the top and bottom, so that they may be easily inoved up or down along the tubes at any time. The front side is made hollow to hold some protecting material, such as fire-clay. I unite the sections with the separating-chamber S and the mud-drum M by tubes t, of smaller diameter than the inclined tubes T. This allows sufficient metal in the cross-pi pes between the tubes and at the ends of the headers to expand against; also, permits lfree passage for the escaping gases through the downtakes in the rear.

The feed-water is supplied to the boiler through the separating-drum and the waterlevel carried at about the center of the same. The mud-drum M is fitted with a hand-hole for cleaning and blow-off. (Not shown.) The doors C C C are set in the inclosing brickwork and permit access for examination, cleaning, &c. The register-cleaning doors 'r are for the introduction of a nozzle for blowing the dust from the outside of the tubes.

I may support the boiler in any well-known way, such as by girders extending across the top carrying suspension-bolts attached to the drum; o r the rear may rest upon the mud- IOO drum and the forward end on the front in any Suitable manner.

Having thus described my invention, what I claim, and desire to secure by Letters Pat- 5 ent, is-

l. In a water-tube boiler, a header constructed of an integral tubular piece havin expanded portions to receive series of tubes lying in a common vertical plane, and having 1o contracted portions between such expanded portions-to lit alternately-located expanded portions of similar adjacent headers.

2. The combination, with the headers Il', adapted to secure one tube in each alternate I5 horizontal row of inclined tubes and fitted to lie in close order alternately at a higher and s AMASA WORTHINGTON. Witnesses:

CHAs. BALL, AARON C. JEWELL. 

